Re: [Qemu-ppc] [PATCH 3/3] ppc/spapr: implement H_SIGNAL_SYS_RESET

[Nicholas Piggin]

On Thu, 20 Oct 2016 11:21:22 +0200
Thomas Huth <address@hidden> wrote:

> On 20.10.2016 08:59, Nicholas Piggin wrote:
> > The H_SIGNAL_SYS_RESET hcall allows a guest CPU to raise a system
> > reset exception on other CPUs in the same guest.
> > 
> > Signed-off-by: Nicholas Piggin <address@hidden>
> > ---
> >  hw/ppc/spapr_hcall.c   | 42 ++++++++++++++++++++++++++++++++++++++++++
> >  include/hw/ppc/spapr.h |  8 +++++++-
> >  2 files changed, 49 insertions(+), 1 deletion(-)  
> ...
> > diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> > index aeaba3e..a28538b 100644
> > --- a/include/hw/ppc/spapr.h
> > +++ b/include/hw/ppc/spapr.h
> > @@ -339,7 +339,13 @@ struct sPAPRMachineState {
> >  #define H_XIRR_X                0x2FC
> >  #define H_RANDOM                0x300
> >  #define H_SET_MODE              0x31C
> > -#define MAX_HCALL_OPCODE        H_SET_MODE
> > +#define H_SIGNAL_SYS_RESET      0x380
> > +#define MAX_HCALL_OPCODE        H_SIGNAL_SYS_RESET
> > +
> > +/* Parameters to H_SIGNAL_SYS_RESET */
> > +#define H_SIGNAL_SYS_RESET_ALL         -1
> > +#define H_SIGNAL_SYS_RESET_ALLBUTSELF  -2
> > +
> >  
> >  /* The hcalls above are standardized in PAPR and implemented by pHyp
> >   * as well.  
> 
> Is there a spec for this hypercall? I can't find it in LoPAPR v1.1 ?

Oh sorry, I should have said that this is going through an internal
process at moment and not in a released document yet. I'll try to get
a more satisfying answer on that one.

Thanks,
Nick